Balloon

In the summer of 1979, the Strelzyk and Wetzel families—who had been working on their audacious plan for more than two years—try to flee East Germany in a self-made hot-air balloon. But after the balloon crash-lands just before the West German border, the Stasi find traces of the attempted escape and immediately launch an investigation. In a nerve-wracking race against the clock, the two families attempt to build a new escape balloon as the Stasi get closer and closer each day…

In German with English subtitles.

“Balloon revels in exploring the details of every possible kind of danger these people face, so it’s a nerve-wincher, a cracking good escape thriller…” —
Kyle Smith, National Review